44Ti Emission from Cassiopeia A - SRON
44Ti Emission from Cassiopeia A - SRON 44Ti Emission from Cassiopeia A - SRON
Supernova remnants & Importance of 44 Ti ● Decay time ~85 yr: present in young remnants ● Less abundant than 56 Ni (~0.07 vs 10 -5 -10 -4 M סּ ) ● Alpha rich freeze out product (excess of alpha particles during rapid expansion) ● Amount sensitive to SN mass cut/energy/asymmetries Arnett '98 Arnett '96 44 Ti Emission from Cassiopeia A Jacco Vink Diehl&Timmes Estec, '98 Noordwijk, January 19, 2005
44 Ti & Integral IBIS SPI 44 Ti Emission from Cassiopeia A Jacco Vink Estec, Noordwijk, January 19, 2005
- Page 1: 44 Ti Emission from Cassiopeia A Ja
- Page 5 and 6: Explosive Nucleosynthesis (Kifonidi
- Page 7 and 8: Detection of 44 Ti emission from Ca
- Page 9 and 10: Evidence for Asymmetric Explosion C
- Page 11 and 12: What velocities to expect? ● Curr
- Page 13 and 14: INTEGRAL Observations Cas A (Amalga
- Page 15 and 16: IBIS spectrum Raw spectrum ● 67.9
- Page 17: Summary and Conclusions ● 44 Ti a
Supernova remnants & Importance of 44 Ti<br />
●<br />
Decay time ~85 yr: present in young remnants<br />
● Less abundant than 56 Ni (~0.07 vs 10 -5 -10 -4 M<br />
סּ )<br />
●<br />
Alpha rich freeze out product<br />
(excess of alpha particles during rapid expansion)<br />
●<br />
Amount sensitive to SN mass cut/energy/asymmetries<br />
Arnett '98<br />
Arnett '96<br />
44 Ti <strong>Emission</strong> <strong>from</strong> <strong>Cassiopeia</strong> A<br />
Jacco Vink<br />
Diehl&Timmes<br />
Estec,<br />
'98<br />
Noordwijk, January 19, 2005
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